+/*
+
+This file is part of Ext JS 4
+
+Copyright (c) 2011 Sencha Inc
+
+Contact: http://www.sencha.com/contact
+
+GNU General Public License Usage
+This file may be used under the terms of the GNU General Public License version 3.0 as published by the Free Software Foundation and appearing in the file LICENSE included in the packaging of this file. Please review the following information to ensure the GNU General Public License version 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html.
+
+If you are unsure which license is appropriate for your use, please contact the sales department at http://www.sencha.com/contact.
+
+*/
+/**
+ * @class Ext.chart.series.Area
+ * @extends Ext.chart.series.Cartesian
+ *
+ * Creates a Stacked Area Chart. The stacked area chart is useful when displaying multiple aggregated layers of information.
+ * As with all other series, the Area Series must be appended in the *series* Chart array configuration. See the Chart
+ * documentation for more information. A typical configuration object for the area series could be:
+ *
+ * @example
+ * var store = Ext.create('Ext.data.JsonStore', {
+ * fields: ['name', 'data1', 'data2', 'data3', 'data4', 'data5'],
+ * data: [
+ * { 'name': 'metric one', 'data1':10, 'data2':12, 'data3':14, 'data4':8, 'data5':13 },
+ * { 'name': 'metric two', 'data1':7, 'data2':8, 'data3':16, 'data4':10, 'data5':3 },
+ * { 'name': 'metric three', 'data1':5, 'data2':2, 'data3':14, 'data4':12, 'data5':7 },
+ * { 'name': 'metric four', 'data1':2, 'data2':14, 'data3':6, 'data4':1, 'data5':23 },
+ * { 'name': 'metric five', 'data1':27, 'data2':38, 'data3':36, 'data4':13, 'data5':33 }
+ * ]
+ * });
+ *
+ * Ext.create('Ext.chart.Chart', {
+ * renderTo: Ext.getBody(),
+ * width: 500,
+ * height: 300,
+ * store: store,
+ * axes: [
+ * {
+ * type: 'Numeric',
+ * grid: true,
+ * position: 'left',
+ * fields: ['data1', 'data2', 'data3', 'data4', 'data5'],
+ * title: 'Sample Values',
+ * grid: {
+ * odd: {
+ * opacity: 1,
+ * fill: '#ddd',
+ * stroke: '#bbb',
+ * 'stroke-width': 1
+ * }
+ * },
+ * minimum: 0,
+ * adjustMinimumByMajorUnit: 0
+ * },
+ * {
+ * type: 'Category',
+ * position: 'bottom',
+ * fields: ['name'],
+ * title: 'Sample Metrics',
+ * grid: true,
+ * label: {
+ * rotate: {
+ * degrees: 315
+ * }
+ * }
+ * }
+ * ],
+ * series: [{
+ * type: 'area',
+ * highlight: false,
+ * axis: 'left',
+ * xField: 'name',
+ * yField: ['data1', 'data2', 'data3', 'data4', 'data5'],
+ * style: {
+ * opacity: 0.93
+ * }
+ * }]
+ * });
+ *
+ * In this configuration we set `area` as the type for the series, set highlighting options to true for highlighting elements on hover,
+ * take the left axis to measure the data in the area series, set as xField (x values) the name field of each element in the store,
+ * and as yFields (aggregated layers) seven data fields from the same store. Then we override some theming styles by adding some opacity
+ * to the style object.
+ *
+ * @xtype area
+ */
+Ext.define('Ext.chart.series.Area', {
+
+ /* Begin Definitions */
+
+ extend: 'Ext.chart.series.Cartesian',
+
+ alias: 'series.area',
+
+ requires: ['Ext.chart.axis.Axis', 'Ext.draw.Color', 'Ext.fx.Anim'],
+
+ /* End Definitions */
+
+ type: 'area',
+
+ // @private Area charts are alyways stacked
+ stacked: true,
+
+ /**
+ * @cfg {Object} style
+ * Append styling properties to this object for it to override theme properties.
+ */
+ style: {},
+
+ constructor: function(config) {
+ this.callParent(arguments);
+ var me = this,
+ surface = me.chart.surface,
+ i, l;
+ Ext.apply(me, config, {
+ __excludes: [],
+ highlightCfg: {
+ lineWidth: 3,
+ stroke: '#55c',
+ opacity: 0.8,
+ color: '#f00'
+ }
+ });
+ if (me.highlight) {
+ me.highlightSprite = surface.add({
+ type: 'path',
+ path: ['M', 0, 0],
+ zIndex: 1000,
+ opacity: 0.3,
+ lineWidth: 5,
+ hidden: true,
+ stroke: '#444'
+ });
+ }
+ me.group = surface.getGroup(me.seriesId);
+ },
+
+ // @private Shrinks dataSets down to a smaller size
+ shrink: function(xValues, yValues, size) {
+ var len = xValues.length,
+ ratio = Math.floor(len / size),
+ i, j,
+ xSum = 0,
+ yCompLen = this.areas.length,
+ ySum = [],
+ xRes = [],
+ yRes = [];
+ //initialize array
+ for (j = 0; j < yCompLen; ++j) {
+ ySum[j] = 0;
+ }
+ for (i = 0; i < len; ++i) {
+ xSum += xValues[i];
+ for (j = 0; j < yCompLen; ++j) {
+ ySum[j] += yValues[i][j];
+ }
+ if (i % ratio == 0) {
+ //push averages
+ xRes.push(xSum/ratio);
+ for (j = 0; j < yCompLen; ++j) {
+ ySum[j] /= ratio;
+ }
+ yRes.push(ySum);
+ //reset sum accumulators
+ xSum = 0;
+ for (j = 0, ySum = []; j < yCompLen; ++j) {
+ ySum[j] = 0;
+ }
+ }
+ }
+ return {
+ x: xRes,
+ y: yRes
+ };
+ },
+
+ // @private Get chart and data boundaries
+ getBounds: function() {
+ var me = this,
+ chart = me.chart,
+ store = chart.getChartStore(),
+ areas = [].concat(me.yField),
+ areasLen = areas.length,
+ xValues = [],
+ yValues = [],
+ infinity = Infinity,
+ minX = infinity,
+ minY = infinity,
+ maxX = -infinity,
+ maxY = -infinity,
+ math = Math,
+ mmin = math.min,
+ mmax = math.max,
+ bbox, xScale, yScale, xValue, yValue, areaIndex, acumY, ln, sumValues, clipBox, areaElem;
+
+ me.setBBox();
+ bbox = me.bbox;
+
+ // Run through the axis
+ if (me.axis) {
+ axis = chart.axes.get(me.axis);
+ if (axis) {
+ out = axis.calcEnds();
+ minY = out.from || axis.prevMin;
+ maxY = mmax(out.to || axis.prevMax, 0);
+ }
+ }
+
+ if (me.yField && !Ext.isNumber(minY)) {
+ axis = Ext.create('Ext.chart.axis.Axis', {
+ chart: chart,
+ fields: [].concat(me.yField)
+ });
+ out = axis.calcEnds();
+ minY = out.from || axis.prevMin;
+ maxY = mmax(out.to || axis.prevMax, 0);
+ }
+
+ if (!Ext.isNumber(minY)) {
+ minY = 0;
+ }
+ if (!Ext.isNumber(maxY)) {
+ maxY = 0;
+ }
+
+ store.each(function(record, i) {
+ xValue = record.get(me.xField);
+ yValue = [];
+ if (typeof xValue != 'number') {
+ xValue = i;
+ }
+ xValues.push(xValue);
+ acumY = 0;
+ for (areaIndex = 0; areaIndex < areasLen; areaIndex++) {
+ areaElem = record.get(areas[areaIndex]);
+ if (typeof areaElem == 'number') {
+ minY = mmin(minY, areaElem);
+ yValue.push(areaElem);
+ acumY += areaElem;
+ }
+ }
+ minX = mmin(minX, xValue);
+ maxX = mmax(maxX, xValue);
+ maxY = mmax(maxY, acumY);
+ yValues.push(yValue);
+ }, me);
+
+ xScale = bbox.width / ((maxX - minX) || 1);
+ yScale = bbox.height / ((maxY - minY) || 1);
+
+ ln = xValues.length;
+ if ((ln > bbox.width) && me.areas) {
+ sumValues = me.shrink(xValues, yValues, bbox.width);
+ xValues = sumValues.x;
+ yValues = sumValues.y;
+ }
+
+ return {
+ bbox: bbox,
+ minX: minX,
+ minY: minY,
+ xValues: xValues,
+ yValues: yValues,
+ xScale: xScale,
+ yScale: yScale,
+ areasLen: areasLen
+ };
+ },
+
+ // @private Build an array of paths for the chart
+ getPaths: function() {
+ var me = this,
+ chart = me.chart,
+ store = chart.getChartStore(),
+ first = true,
+ bounds = me.getBounds(),
+ bbox = bounds.bbox,
+ items = me.items = [],
+ componentPaths = [],
+ componentPath,
+ paths = [],
+ i, ln, x, y, xValue, yValue, acumY, areaIndex, prevAreaIndex, areaElem, path;
+
+ ln = bounds.xValues.length;
+ // Start the path
+ for (i = 0; i < ln; i++) {
+ xValue = bounds.xValues[i];
+ yValue = bounds.yValues[i];
+ x = bbox.x + (xValue - bounds.minX) * bounds.xScale;
+ acumY = 0;
+ for (areaIndex = 0; areaIndex < bounds.areasLen; areaIndex++) {
+ // Excluded series
+ if (me.__excludes[areaIndex]) {
+ continue;
+ }
+ if (!componentPaths[areaIndex]) {
+ componentPaths[areaIndex] = [];
+ }
+ areaElem = yValue[areaIndex];
+ acumY += areaElem;
+ y = bbox.y + bbox.height - (acumY - bounds.minY) * bounds.yScale;
+ if (!paths[areaIndex]) {
+ paths[areaIndex] = ['M', x, y];
+ componentPaths[areaIndex].push(['L', x, y]);
+ } else {
+ paths[areaIndex].push('L', x, y);
+ componentPaths[areaIndex].push(['L', x, y]);
+ }
+ if (!items[areaIndex]) {
+ items[areaIndex] = {
+ pointsUp: [],
+ pointsDown: [],
+ series: me
+ };
+ }
+ items[areaIndex].pointsUp.push([x, y]);
+ }
+ }
+
+ // Close the paths
+ for (areaIndex = 0; areaIndex < bounds.areasLen; areaIndex++) {
+ // Excluded series
+ if (me.__excludes[areaIndex]) {
+ continue;
+ }
+ path = paths[areaIndex];
+ // Close bottom path to the axis
+ if (areaIndex == 0 || first) {
+ first = false;
+ path.push('L', x, bbox.y + bbox.height,
+ 'L', bbox.x, bbox.y + bbox.height,
+ 'Z');
+ }
+ // Close other paths to the one before them
+ else {
+ componentPath = componentPaths[prevAreaIndex];
+ componentPath.reverse();
+ path.push('L', x, componentPath[0][2]);
+ for (i = 0; i < ln; i++) {
+ path.push(componentPath[i][0],
+ componentPath[i][1],
+ componentPath[i][2]);
+ items[areaIndex].pointsDown[ln -i -1] = [componentPath[i][1], componentPath[i][2]];
+ }
+ path.push('L', bbox.x, path[2], 'Z');
+ }
+ prevAreaIndex = areaIndex;
+ }
+ return {
+ paths: paths,
+ areasLen: bounds.areasLen
+ };
+ },
+
+ /**
+ * Draws the series for the current chart.
+ */
+ drawSeries: function() {
+ var me = this,
+ chart = me.chart,
+ store = chart.getChartStore(),
+ surface = chart.surface,
+ animate = chart.animate,
+ group = me.group,
+ endLineStyle = Ext.apply(me.seriesStyle, me.style),
+ colorArrayStyle = me.colorArrayStyle,
+ colorArrayLength = colorArrayStyle && colorArrayStyle.length || 0,
+ areaIndex, areaElem, paths, path, rendererAttributes;
+
+ me.unHighlightItem();
+ me.cleanHighlights();
+
+ if (!store || !store.getCount()) {
+ return;
+ }
+
+ paths = me.getPaths();
+
+ if (!me.areas) {
+ me.areas = [];
+ }
+
+ for (areaIndex = 0; areaIndex < paths.areasLen; areaIndex++) {
+ // Excluded series
+ if (me.__excludes[areaIndex]) {
+ continue;
+ }
+ if (!me.areas[areaIndex]) {
+ me.items[areaIndex].sprite = me.areas[areaIndex] = surface.add(Ext.apply({}, {
+ type: 'path',
+ group: group,
+ // 'clip-rect': me.clipBox,
+ path: paths.paths[areaIndex],
+ stroke: endLineStyle.stroke || colorArrayStyle[areaIndex % colorArrayLength],
+ fill: colorArrayStyle[areaIndex % colorArrayLength]
+ }, endLineStyle || {}));
+ }
+ areaElem = me.areas[areaIndex];
+ path = paths.paths[areaIndex];
+ if (animate) {
+ //Add renderer to line. There is not a unique record associated with this.
+ rendererAttributes = me.renderer(areaElem, false, {
+ path: path,
+ // 'clip-rect': me.clipBox,
+ fill: colorArrayStyle[areaIndex % colorArrayLength],
+ stroke: endLineStyle.stroke || colorArrayStyle[areaIndex % colorArrayLength]
+ }, areaIndex, store);
+ //fill should not be used here but when drawing the special fill path object
+ me.animation = me.onAnimate(areaElem, {
+ to: rendererAttributes
+ });
+ } else {
+ rendererAttributes = me.renderer(areaElem, false, {
+ path: path,
+ // 'clip-rect': me.clipBox,
+ hidden: false,
+ fill: colorArrayStyle[areaIndex % colorArrayLength],
+ stroke: endLineStyle.stroke || colorArrayStyle[areaIndex % colorArrayLength]
+ }, areaIndex, store);
+ me.areas[areaIndex].setAttributes(rendererAttributes, true);
+ }
+ }
+ me.renderLabels();
+ me.renderCallouts();
+ },
+
+ // @private
+ onAnimate: function(sprite, attr) {
+ sprite.show();
+ return this.callParent(arguments);
+ },
+
+ // @private
+ onCreateLabel: function(storeItem, item, i, display) {
+ var me = this,
+ group = me.labelsGroup,
+ config = me.label,
+ bbox = me.bbox,
+ endLabelStyle = Ext.apply(config, me.seriesLabelStyle);
+
+ return me.chart.surface.add(Ext.apply({
+ 'type': 'text',
+ 'text-anchor': 'middle',
+ 'group': group,
+ 'x': item.point[0],
+ 'y': bbox.y + bbox.height / 2
+ }, endLabelStyle || {}));
+ },
+
+ // @private
+ onPlaceLabel: function(label, storeItem, item, i, display, animate, index) {
+ var me = this,
+ chart = me.chart,
+ resizing = chart.resizing,
+ config = me.label,
+ format = config.renderer,
+ field = config.field,
+ bbox = me.bbox,
+ x = item.point[0],
+ y = item.point[1],
+ bb, width, height;
+
+ label.setAttributes({
+ text: format(storeItem.get(field[index])),
+ hidden: true
+ }, true);
+
+ bb = label.getBBox();
+ width = bb.width / 2;
+ height = bb.height / 2;
+
+ x = x - width < bbox.x? bbox.x + width : x;
+ x = (x + width > bbox.x + bbox.width) ? (x - (x + width - bbox.x - bbox.width)) : x;
+ y = y - height < bbox.y? bbox.y + height : y;
+ y = (y + height > bbox.y + bbox.height) ? (y - (y + height - bbox.y - bbox.height)) : y;
+
+ if (me.chart.animate && !me.chart.resizing) {
+ label.show(true);
+ me.onAnimate(label, {
+ to: {
+ x: x,
+ y: y
+ }
+ });
+ } else {
+ label.setAttributes({
+ x: x,
+ y: y
+ }, true);
+ if (resizing) {
+ me.animation.on('afteranimate', function() {
+ label.show(true);
+ });
+ } else {
+ label.show(true);
+ }
+ }
+ },
+
+ // @private
+ onPlaceCallout : function(callout, storeItem, item, i, display, animate, index) {
+ var me = this,
+ chart = me.chart,
+ surface = chart.surface,
+ resizing = chart.resizing,
+ config = me.callouts,
+ items = me.items,
+ prev = (i == 0) ? false : items[i -1].point,
+ next = (i == items.length -1) ? false : items[i +1].point,
+ cur = item.point,
+ dir, norm, normal, a, aprev, anext,
+ bbox = callout.label.getBBox(),
+ offsetFromViz = 30,
+ offsetToSide = 10,
+ offsetBox = 3,
+ boxx, boxy, boxw, boxh,
+ p, clipRect = me.clipRect,
+ x, y;
+
+ //get the right two points
+ if (!prev) {
+ prev = cur;
+ }
+ if (!next) {
+ next = cur;
+ }
+ a = (next[1] - prev[1]) / (next[0] - prev[0]);
+ aprev = (cur[1] - prev[1]) / (cur[0] - prev[0]);
+ anext = (next[1] - cur[1]) / (next[0] - cur[0]);
+
+ norm = Math.sqrt(1 + a * a);
+ dir = [1 / norm, a / norm];
+ normal = [-dir[1], dir[0]];
+
+ //keep the label always on the outer part of the "elbow"
+ if (aprev > 0 && anext < 0 && normal[1] < 0 || aprev < 0 && anext > 0 && normal[1] > 0) {
+ normal[0] *= -1;
+ normal[1] *= -1;
+ } else if (Math.abs(aprev) < Math.abs(anext) && normal[0] < 0 || Math.abs(aprev) > Math.abs(anext) && normal[0] > 0) {
+ normal[0] *= -1;
+ normal[1] *= -1;
+ }
+
+ //position
+ x = cur[0] + normal[0] * offsetFromViz;
+ y = cur[1] + normal[1] * offsetFromViz;
+
+ //box position and dimensions
+ boxx = x + (normal[0] > 0? 0 : -(bbox.width + 2 * offsetBox));
+ boxy = y - bbox.height /2 - offsetBox;
+ boxw = bbox.width + 2 * offsetBox;
+ boxh = bbox.height + 2 * offsetBox;
+
+ //now check if we're out of bounds and invert the normal vector correspondingly
+ //this may add new overlaps between labels (but labels won't be out of bounds).
+ if (boxx < clipRect[0] || (boxx + boxw) > (clipRect[0] + clipRect[2])) {
+ normal[0] *= -1;
+ }
+ if (boxy < clipRect[1] || (boxy + boxh) > (clipRect[1] + clipRect[3])) {
+ normal[1] *= -1;
+ }
+
+ //update positions
+ x = cur[0] + normal[0] * offsetFromViz;
+ y = cur[1] + normal[1] * offsetFromViz;
+
+ //update box position and dimensions
+ boxx = x + (normal[0] > 0? 0 : -(bbox.width + 2 * offsetBox));
+ boxy = y - bbox.height /2 - offsetBox;
+ boxw = bbox.width + 2 * offsetBox;
+ boxh = bbox.height + 2 * offsetBox;
+
+ //set the line from the middle of the pie to the box.
+ callout.lines.setAttributes({
+ path: ["M", cur[0], cur[1], "L", x, y, "Z"]
+ }, true);
+ //set box position
+ callout.box.setAttributes({
+ x: boxx,
+ y: boxy,
+ width: boxw,
+ height: boxh
+ }, true);
+ //set text position
+ callout.label.setAttributes({
+ x: x + (normal[0] > 0? offsetBox : -(bbox.width + offsetBox)),
+ y: y
+ }, true);
+ for (p in callout) {
+ callout[p].show(true);
+ }
+ },
+
+ isItemInPoint: function(x, y, item, i) {
+ var me = this,
+ pointsUp = item.pointsUp,
+ pointsDown = item.pointsDown,
+ abs = Math.abs,
+ dist = Infinity, p, pln, point;
+
+ for (p = 0, pln = pointsUp.length; p < pln; p++) {
+ point = [pointsUp[p][0], pointsUp[p][1]];
+ if (dist > abs(x - point[0])) {
+ dist = abs(x - point[0]);
+ } else {
+ point = pointsUp[p -1];
+ if (y >= point[1] && (!pointsDown.length || y <= (pointsDown[p -1][1]))) {
+ item.storeIndex = p -1;
+ item.storeField = me.yField[i];
+ item.storeItem = me.chart.store.getAt(p -1);
+ item._points = pointsDown.length? [point, pointsDown[p -1]] : [point];
+ return true;
+ } else {
+ break;
+ }
+ }
+ }
+ return false;
+ },
+
+ /**
+ * Highlight this entire series.
+ * @param {Object} item Info about the item; same format as returned by #getItemForPoint.
+ */
+ highlightSeries: function() {
+ var area, to, fillColor;
+ if (this._index !== undefined) {
+ area = this.areas[this._index];
+ if (area.__highlightAnim) {
+ area.__highlightAnim.paused = true;
+ }
+ area.__highlighted = true;
+ area.__prevOpacity = area.__prevOpacity || area.attr.opacity || 1;
+ area.__prevFill = area.__prevFill || area.attr.fill;
+ area.__prevLineWidth = area.__prevLineWidth || area.attr.lineWidth;
+ fillColor = Ext.draw.Color.fromString(area.__prevFill);
+ to = {
+ lineWidth: (area.__prevLineWidth || 0) + 2
+ };
+ if (fillColor) {
+ to.fill = fillColor.getLighter(0.2).toString();
+ }
+ else {
+ to.opacity = Math.max(area.__prevOpacity - 0.3, 0);
+ }
+ if (this.chart.animate) {
+ area.__highlightAnim = Ext.create('Ext.fx.Anim', Ext.apply({
+ target: area,
+ to: to
+ }, this.chart.animate));
+ }
+ else {
+ area.setAttributes(to, true);
+ }
+ }
+ },
+
+ /**
+ * UnHighlight this entire series.
+ * @param {Object} item Info about the item; same format as returned by #getItemForPoint.
+ */
+ unHighlightSeries: function() {
+ var area;
+ if (this._index !== undefined) {
+ area = this.areas[this._index];
+ if (area.__highlightAnim) {
+ area.__highlightAnim.paused = true;
+ }
+ if (area.__highlighted) {
+ area.__highlighted = false;
+ area.__highlightAnim = Ext.create('Ext.fx.Anim', {
+ target: area,
+ to: {
+ fill: area.__prevFill,
+ opacity: area.__prevOpacity,
+ lineWidth: area.__prevLineWidth
+ }
+ });
+ }
+ }
+ },
+
+ /**
+ * Highlight the specified item. If no item is provided the whole series will be highlighted.
+ * @param item {Object} Info about the item; same format as returned by #getItemForPoint
+ */
+ highlightItem: function(item) {
+ var me = this,
+ points, path;
+ if (!item) {
+ this.highlightSeries();
+ return;
+ }
+ points = item._points;
+ path = points.length == 2? ['M', points[0][0], points[0][1], 'L', points[1][0], points[1][1]]
+ : ['M', points[0][0], points[0][1], 'L', points[0][0], me.bbox.y + me.bbox.height];
+ me.highlightSprite.setAttributes({
+ path: path,
+ hidden: false
+ }, true);
+ },
+
+ /**
+ * Un-highlights the specified item. If no item is provided it will un-highlight the entire series.
+ * @param {Object} item Info about the item; same format as returned by #getItemForPoint
+ */
+ unHighlightItem: function(item) {
+ if (!item) {
+ this.unHighlightSeries();
+ }
+
+ if (this.highlightSprite) {
+ this.highlightSprite.hide(true);
+ }
+ },
+
+ // @private
+ hideAll: function() {
+ if (!isNaN(this._index)) {
+ this.__excludes[this._index] = true;
+ this.areas[this._index].hide(true);
+ this.drawSeries();
+ }
+ },
+
+ // @private
+ showAll: function() {
+ if (!isNaN(this._index)) {
+ this.__excludes[this._index] = false;
+ this.areas[this._index].show(true);
+ this.drawSeries();
+ }
+ },
+
+ /**
+ * Returns the color of the series (to be displayed as color for the series legend item).
+ * @param item {Object} Info about the item; same format as returned by #getItemForPoint
+ */
+ getLegendColor: function(index) {
+ var me = this;
+ return me.colorArrayStyle[index % me.colorArrayStyle.length];
+ }
+});
/**
* @class Ext.chart.series.Area
* @extends Ext.chart.series.Cartesian
- *
- <p>
- Creates a Stacked Area Chart. The stacked area chart is useful when displaying multiple aggregated layers of information.
- As with all other series, the Area Series must be appended in the *series* Chart array configuration. See the Chart
- documentation for more information. A typical configuration object for the area series could be:
- </p>
-{@img Ext.chart.series.Area/Ext.chart.series.Area.png Ext.chart.series.Area chart series}
- <pre><code>
- var store = Ext.create('Ext.data.JsonStore', {
- fields: ['name', 'data1', 'data2', 'data3', 'data4', 'data5'],
- data: [
- {'name':'metric one', 'data1':10, 'data2':12, 'data3':14, 'data4':8, 'data5':13},
- {'name':'metric two', 'data1':7, 'data2':8, 'data3':16, 'data4':10, 'data5':3},
- {'name':'metric three', 'data1':5, 'data2':2, 'data3':14, 'data4':12, 'data5':7},
- {'name':'metric four', 'data1':2, 'data2':14, 'data3':6, 'data4':1, 'data5':23},
- {'name':'metric five', 'data1':27, 'data2':38, 'data3':36, 'data4':13, 'data5':33}
- ]
- });
-
- Ext.create('Ext.chart.Chart', {
- renderTo: Ext.getBody(),
- width: 500,
- height: 300,
- store: store,
- axes: [{
- type: 'Numeric',
- grid: true,
- position: 'left',
- fields: ['data1', 'data2', 'data3', 'data4', 'data5'],
- title: 'Sample Values',
- grid: {
- odd: {
- opacity: 1,
- fill: '#ddd',
- stroke: '#bbb',
- 'stroke-width': 1
- }
- },
- minimum: 0,
- adjustMinimumByMajorUnit: 0
- }, {
- type: 'Category',
- position: 'bottom',
- fields: ['name'],
- title: 'Sample Metrics',
- grid: true,
- label: {
- rotate: {
- degrees: 315
- }
- }
- }],
- series: [{
- type: 'area',
- highlight: false,
- axis: 'left',
- xField: 'name',
- yField: ['data1', 'data2', 'data3', 'data4', 'data5'],
- style: {
- opacity: 0.93
- }
- }]
- });
- </code></pre>
-
-
- <p>
- In this configuration we set `area` as the type for the series, set highlighting options to true for highlighting elements on hover,
- take the left axis to measure the data in the area series, set as xField (x values) the name field of each element in the store,
- and as yFields (aggregated layers) seven data fields from the same store. Then we override some theming styles by adding some opacity
- to the style object.
- </p>
-
+ *
+ * Creates a Stacked Area Chart. The stacked area chart is useful when displaying multiple aggregated layers of information.
+ * As with all other series, the Area Series must be appended in the *series* Chart array configuration. See the Chart
+ * documentation for more information. A typical configuration object for the area series could be:
+ *
+ * @example
+ * var store = Ext.create('Ext.data.JsonStore', {
+ * fields: ['name', 'data1', 'data2', 'data3', 'data4', 'data5'],
+ * data: [
+ * { 'name': 'metric one', 'data1':10, 'data2':12, 'data3':14, 'data4':8, 'data5':13 },
+ * { 'name': 'metric two', 'data1':7, 'data2':8, 'data3':16, 'data4':10, 'data5':3 },
+ * { 'name': 'metric three', 'data1':5, 'data2':2, 'data3':14, 'data4':12, 'data5':7 },
+ * { 'name': 'metric four', 'data1':2, 'data2':14, 'data3':6, 'data4':1, 'data5':23 },
+ * { 'name': 'metric five', 'data1':27, 'data2':38, 'data3':36, 'data4':13, 'data5':33 }
+ * ]
+ * });
+ *
+ * Ext.create('Ext.chart.Chart', {
+ * renderTo: Ext.getBody(),
+ * width: 500,
+ * height: 300,
+ * store: store,
+ * axes: [
+ * {
+ * type: 'Numeric',
+ * grid: true,
+ * position: 'left',
+ * fields: ['data1', 'data2', 'data3', 'data4', 'data5'],
+ * title: 'Sample Values',
+ * grid: {
+ * odd: {
+ * opacity: 1,
+ * fill: '#ddd',
+ * stroke: '#bbb',
+ * 'stroke-width': 1
+ * }
+ * },
+ * minimum: 0,
+ * adjustMinimumByMajorUnit: 0
+ * },
+ * {
+ * type: 'Category',
+ * position: 'bottom',
+ * fields: ['name'],
+ * title: 'Sample Metrics',
+ * grid: true,
+ * label: {
+ * rotate: {
+ * degrees: 315
+ * }
+ * }
+ * }
+ * ],
+ * series: [{
+ * type: 'area',
+ * highlight: false,
+ * axis: 'left',
+ * xField: 'name',
+ * yField: ['data1', 'data2', 'data3', 'data4', 'data5'],
+ * style: {
+ * opacity: 0.93
+ * }
+ * }]
+ * });
+ *
+ * In this configuration we set `area` as the type for the series, set highlighting options to true for highlighting elements on hover,
+ * take the left axis to measure the data in the area series, set as xField (x values) the name field of each element in the store,
+ * and as yFields (aggregated layers) seven data fields from the same store. Then we override some theming styles by adding some opacity
+ * to the style object.
+ *
* @xtype area
- *
*/
Ext.define('Ext.chart.series.Area', {
/* Begin Definitions */
extend: 'Ext.chart.series.Cartesian',
-
+
alias: 'series.area',
requires: ['Ext.chart.axis.Axis', 'Ext.draw.Color', 'Ext.fx.Anim'],
stacked: true,
/**
- * @cfg {Object} style
+ * @cfg {Object} style
* Append styling properties to this object for it to override theme properties.
*/
style: {},
getBounds: function() {
var me = this,
chart = me.chart,
- store = chart.substore || chart.store,
+ store = chart.getChartStore(),
areas = [].concat(me.yField),
areasLen = areas.length,
xValues = [],
yValues.push(yValue);
}, me);
- xScale = bbox.width / (maxX - minX);
- yScale = bbox.height / (maxY - minY);
+ xScale = bbox.width / ((maxX - minX) || 1);
+ yScale = bbox.height / ((maxY - minY) || 1);
ln = xValues.length;
if ((ln > bbox.width) && me.areas) {
getPaths: function() {
var me = this,
chart = me.chart,
- store = chart.substore || chart.store,
+ store = chart.getChartStore(),
first = true,
bounds = me.getBounds(),
bbox = bounds.bbox,
items[areaIndex].pointsUp.push([x, y]);
}
}
-
+
// Close the paths
for (areaIndex = 0; areaIndex < bounds.areasLen; areaIndex++) {
// Excluded series
drawSeries: function() {
var me = this,
chart = me.chart,
- store = chart.substore || chart.store,
+ store = chart.getChartStore(),
surface = chart.surface,
animate = chart.animate,
group = me.group,
if (!store || !store.getCount()) {
return;
}
-
+
paths = me.getPaths();
if (!me.areas) {
path = paths.paths[areaIndex];
if (animate) {
//Add renderer to line. There is not a unique record associated with this.
- rendererAttributes = me.renderer(areaElem, false, {
+ rendererAttributes = me.renderer(areaElem, false, {
path: path,
// 'clip-rect': me.clipBox,
fill: colorArrayStyle[areaIndex % colorArrayLength],
to: rendererAttributes
});
} else {
- rendererAttributes = me.renderer(areaElem, false, {
+ rendererAttributes = me.renderer(areaElem, false, {
path: path,
// 'clip-rect': me.clipBox,
hidden: false,
x = item.point[0],
y = item.point[1],
bb, width, height;
-
+
label.setAttributes({
text: format(storeItem.get(field[index])),
hidden: true
}, true);
-
+
bb = label.getBBox();
width = bb.width / 2;
height = bb.height / 2;
-
+
x = x - width < bbox.x? bbox.x + width : x;
x = (x + width > bbox.x + bbox.width) ? (x - (x + width - bbox.x - bbox.width)) : x;
y = y - height < bbox.y? bbox.y + height : y;
a = (next[1] - prev[1]) / (next[0] - prev[0]);
aprev = (cur[1] - prev[1]) / (cur[0] - prev[0]);
anext = (next[1] - cur[1]) / (next[0] - cur[0]);
-
+
norm = Math.sqrt(1 + a * a);
dir = [1 / norm, a / norm];
normal = [-dir[1], dir[0]];
-
+
//keep the label always on the outer part of the "elbow"
if (aprev > 0 && anext < 0 && normal[1] < 0 || aprev < 0 && anext > 0 && normal[1] > 0) {
normal[0] *= -1;
//position
x = cur[0] + normal[0] * offsetFromViz;
y = cur[1] + normal[1] * offsetFromViz;
-
+
//box position and dimensions
boxx = x + (normal[0] > 0? 0 : -(bbox.width + 2 * offsetBox));
boxy = y - bbox.height /2 - offsetBox;
boxw = bbox.width + 2 * offsetBox;
boxh = bbox.height + 2 * offsetBox;
-
+
//now check if we're out of bounds and invert the normal vector correspondingly
//this may add new overlaps between labels (but labels won't be out of bounds).
if (boxx < clipRect[0] || (boxx + boxw) > (clipRect[0] + clipRect[2])) {
//update positions
x = cur[0] + normal[0] * offsetFromViz;
y = cur[1] + normal[1] * offsetFromViz;
-
+
//update box position and dimensions
boxx = x + (normal[0] > 0? 0 : -(bbox.width + 2 * offsetBox));
boxy = y - bbox.height /2 - offsetBox;
boxw = bbox.width + 2 * offsetBox;
boxh = bbox.height + 2 * offsetBox;
-
+
//set the line from the middle of the pie to the box.
callout.lines.setAttributes({
path: ["M", cur[0], cur[1], "L", x, y, "Z"]
callout[p].show(true);
}
},
-
+
isItemInPoint: function(x, y, item, i) {
var me = this,
pointsUp = item.pointsUp,
pointsDown = item.pointsDown,
abs = Math.abs,
dist = Infinity, p, pln, point;
-
+
for (p = 0, pln = pointsUp.length; p < pln; p++) {
point = [pointsUp[p][0], pointsUp[p][1]];
if (dist > abs(x - point[0])) {
return me.colorArrayStyle[index % me.colorArrayStyle.length];
}
});
+
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